The Hot Zone is good, but perhaps a bit dramatic.
Ebola is easy to spread when the conditions are right. When hospitals dont match 1st world standards, when disease control measures are poor, when people are not aware of the situation, when burial and burial preparation is amateur. In other words poor 3rd world countries.
In the first world its a tougher thing. People can be educated quickly and easily. Our abilities to quarantine and care for the sick are excellent. Peoples hygiene awareness is better.
Ebola has only spread past quarantine with people already sick. I’m not aware that anyone has subsequently got sick.
Its primarily fluid transfer based. This MAY be in aerosol format if somone coughs up blood, but its fairly limited.
So far, in 30 years, Ebola has killed less people than Malaria kills every two days. AIDS has killed 30 million people worldwide, Ebola 2000 in the same time. This must tell you something.
It IS a very nasty disease, but the way it works limits its effectiveness.